Develop Reference

my app in android studio is crashing when i come to the part recyclerView.setAdapter(adapter);

I am trying to fetch some data in android studio from my online database backendless.com but the proplem is not with the online serves it is when i try to inflate the data. i dont know is it in the layaot file or in the java class
this is my java activitiy ViewMyBusiness.java
public class ViewMyBusiness extends AppCompatActivity {
ListView recyclerView;
private View mProgressView;
private View mLoginFormView;
private TextView tvLoad;
ContactsAdapter adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_view_my_business);
recyclerView = findViewById(R.id.recycler_view);
mLoginFormView = findViewById(R.id.login_form);
mProgressView = findViewById(R.id.login_progress);
tvLoad = findViewById(R.id.tvLoad);
String whereClause = "userEmail = '" + BackendlessCall.user.getEmail() + "'";
DataQueryBuilder queryBuilder = DataQueryBuilder.create();
queryBuilder.setWhereClause(whereClause);
queryBuilder.setGroupBy("companyName");
showProgress(true);
Backendless.Persistence.of(Contact.class).find(queryBuilder, new AsyncCallback<List<Contact>>() {
#Override
public void handleResponse(List<Contact> response) {
adapter = new ContactsAdapter(ViewMyBusiness.this, response);
//the crash is here
recyclerView.setAdapter(adapter);
showProgress(false);
}
#Override
public void handleFault(BackendlessFault fault) {
Toast.makeText(ViewMyBusiness.this, "ERROR: " + fault.getMessage(), Toast.LENGTH_SHORT).show();
showProgress(false);
}
});
}
this is the contacts adapter java class
public class ContactsAdapter extends ArrayAdapter<Contact> {
private Context context;
private List<Contact> contacts;
public ContactsAdapter(Context context, List<Contact> list)
{
super(context, R.layout.row_layout, list);
this.context = context;
this.contacts = list;
}
#NonNull
#Override
public View getView(int position, #Nullable View convertView, #NonNull ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.row_layout, parent, false);
TextView tvChar = convertView.findViewById(R.id.tvChar);
TextView tvCName = convertView.findViewById(R.id.tvCName);
TextView tvBField = convertView.findViewById(R.id.tvBField);
tvChar.setText(contacts.get(position).getCompanyName().toUpperCase().charAt(0) + "");
tvCName.setText(contacts.get(position).getCompanyName());
tvBField.setText(contacts.get(position).getBusinessField());
return convertView;
}
}
the layout for the listview in activity_view_my_business.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".ViewMyBusiness">
<ProgressBar
android:id="#+id/login_progress"
style="?android:attr/progressBarStyleLarge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="200dp"
android:visibility="gone" />
<TextView
android:id="#+id/tvLoad"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="25dp"
android:clickable="true"
android:focusable="true"
android:gravity="center_horizontal"
android:text="Loading...please wait..."
android:textColor="#color/colorPrimary"
android:textStyle="bold"
android:visibility="gone" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/login_form"
android:orientation="vertical">
<TextView
android:id="#+id/textView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:layout_marginTop="10dp"
android:gravity="center_horizontal"
android:text="Business"
android:textSize="24sp"
android:textStyle="bold" />
<ListView
android:id="#+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:listitem="#layout/row_layout"/>
</LinearLayout>
</LinearLayout>
this is the view file that will inflate when data is passed
the row_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="5dp"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/List"
android:orientation="horizontal">
<TextView
android:id="#+id/tvChar"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center_horizontal"
android:text="A"
android:textColor="#color/ListText"
android:textSize="48sp"
android:textStyle="bold" />
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="8"
android:orientation="vertical">
<TextView
android:id="#+id/tvCName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="15dp"
android:layout_marginTop="10dp"
android:text="TextView"
android:textColor="#color/ListText"
android:textSize="18sp"
android:textStyle="bold" />
<TextView
android:id="#+id/tvBField"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="15dp"
android:text="TextView"
android:textColor="#color/ListText" />
</LinearLayout>
</LinearLayout>
</LinearLayout>

You are getting NullPointerException in that line, becasue in this line -
recyclerView = findViewById(R.id.recycler_view);
you are assigning null value to recyclerView variable !
It's because in the activity layout file you have defined a list view not RecyclerView, change this part
<ListView
android:id="#+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:listitem="#layout/row_layout"/>
to this part of xml code -->
<android.support.v7.widget.RecyclerView
android:id="#+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:listitem="#layout/row_layout"/>
and to use recyclerView you have to add these -->
implementation 'com.android.support:recyclerview-v7:28.0.0' ,
dependency to your build.gradle (app:module) file
and here is official documentation about RecyclerView - Andorid RecyclerView
Enjoy!!

How to set text to value of listview items after time intervals

I am developing an android app where a user will input text to an EditText, then it will be added to a ListView.
But once a button with onClick value "start" is clicked, it will display each item of the ListView in a TextView with id displayText, in the order of each item and it will loop(Repeat) once it is exhausted.
Here is my Code
Math.java
public class Math extends AppCompatActivity {
private ArrayList<String> items;
private ArrayAdapter<String> itemsAdapter;
private ListView lvItems;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_math);
lvItems = (ListView) findViewById(R.id.lvItems);
items = new ArrayList<String>();
itemsAdapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, items);
lvItems.setAdapter(itemsAdapter);
}
public void AddItem(View v) {
EditText etNewItem = (EditText) findViewById(R.id.etNewItem);
String itemText = etNewItem.getText().toString();
itemsAdapter.add(itemText);
etNewItem.setText("");
}
public void start(View v){
RelativeLayout lc = (RelativeLayout)findViewById(R.id.contentContainer);
lc.setVisibility(View.GONE);
RelativeLayout tc = (RelativeLayout)findViewById(R.id.tvContainer);
tc.setVisibility(View.VISIBLE);
}
}
activity_math.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".Math">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/tvContainer"
android:visibility="gone">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:textSize="30sp"
android:id="#+id/displayText"/>
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/contentContainer">
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/lvItems"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_above="#+id/btnAddItem" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/etNewItem"
android:layout_alignTop="#+id/btnAddItem"
android:hint="Enter a new item"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_toLeftOf="#+id/btnAddItem"
android:layout_toStartOf="#+id/btnAddItem"
android:layout_alignParentBottom="true" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Add Item"
android:id="#+id/btnAddItem"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:onClick="AddItem"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Start"
android:layout_alignParentBottom="true"
android:layout_toLeftOf="#id/btnAddItem"
android:onClick="start"/>
</RelativeLayout>

Okay, i think the issue is that you haven't given the TextView any thing to display. you have to convert the arrayList to a String array and use setText to display the Value.
add this part to the "start" method
String ls =System.getProperty("line.separator");// i used this to seperate the array items
String joint = TextUtils.join(ls, lvitems);
result.setText(joint);
That should work

adding listener to custom listview containing CheckedTextView and button

this is my row layout(rowlayout.xml)
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/checkedTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginTop="8dp"
android:drawableLeft="?android:attr/listChoiceIndicatorMultiple"
android:gravity="center_vertical"
android:paddingRight="16dp"
android:text="CheckedTextView" />
<Button
android:id="#+id/telque"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_toRightOf="#id/checkedTextView"
android:text="telque" />
</RelativeLayout>
and this is my main layout (activity_work_condition.xml)
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.doctorbeingwell.doctorbeingwell.createfilepack.WorkConditions">
<Button
android:id="#+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_weight="1"
android:onClick="passconditions"
android:text="Button"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/linearLayout" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
tools:layout_editor_absoluteX="8dp"
tools:layout_editor_absoluteY="8dp"
android:id="#+id/linearLayout">
<ListView
android:id="#+id/checkabalelist"
android:layout_width="match_parent"
android:layout_height="491dp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent"
android:layout_weight="0.2"/>
</LinearLayout>
</android.support.constraint.ConstraintLayout>
and this is my class (workconditions.java):
public class WorkConditions extends Activity {
ArrayList<String> selectedItems = new ArrayList<>();
ListView checkablelist;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_work_condition);
checkablelist = findViewById(R.id.checkabalelist);
checkablelist.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
String[] items = {"étudiant",
"chomeur",
"retraité",
"travail à domicile",
"travail au bureau"};
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, R.layout.rowlayout, R.id.checkedTextView, items);
checkablelist.setAdapter(adapter);
CheckedTextView checkedTextView= findViewById(R.id.checkedTextView);
checkablelist.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
String selectedItem = ((CheckedTextView) view).getText().toString();
if (selectedItems.contains(selectedItem)) {
selectedItems.remove(selectedItem);
} else selectedItems.add(selectedItem);
}
});
and this is the result ,
but the items are not clickable and i cant retreive the data with this code
String selectedItem = ((CheckedTextView) view).getText().toString();

In rowlayout.xml, add android:descendantFocusability="blocksDescendants" to the root node(RelativeLayout in your case).
CheckedTextViewview and Button in rowlayout.xml are both focusable, which prevent ListView item from getting focus.
For more, refer android:descendantFocusability

How to design a list of spinner?

I want to have a spinner which will contain a list of items.
The design I want is as follow:
I tried to put background for the spinner so now it only shows a background. I want white layout inside and with separator.
I tried to create a layout for the item and apply to the spinner but it gives error :
Process: com.kiranaapp, PID: 16697
java.lang.IllegalStateException: ArrayAdapter requires the resource ID to be a TextView
My design now looks like this:
And onclick of spinner I get layout like this:
But I want the list to be shown onClick of TextInputLayout.
Here is Xml file:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/bg"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context="com.kiranacustomerapp.Activities.SearchActivity"
tools:showIn="#layout/activity_search">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/white"
android:orientation="vertical">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:focusable="true"
android:focusableInTouchMode="true"
android:layout_height="wrap_content">
<android.support.design.widget.TextInputLayout
android:id="#+id/input_layout_item_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:layout_marginTop="20dp"
android:paddingTop="05dp"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="150dp"
android:background="#drawable/bg">
<Spinner
android:id="#+id/items_spinner"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:visibility="visible"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:background="#ffffff"
android:layout_marginTop="10dp"
android:layout_marginBottom="10dp" />
</LinearLayout>
<android.support.design.widget.TextInputEditText
android:layout_width="240dp"
android:layout_height="45dp"
android:id="#+id/editTextItemName"
android:layout_gravity="center_horizontal"
android:hint="#string/item_name"
android:textSize="15sp"
android:padding="10dp" >
</android.support.design.widget.TextInputEditText>
</android.support.design.widget.TextInputLayout>
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:focusable="true"
android:focusableInTouchMode="true"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.design.widget.TextInputLayout
android:id="#+id/input_layout_item_unit"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:paddingTop="05dp"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp">
<android.support.design.widget.TextInputEditText
android:layout_width="240dp"
android:layout_height="45dp"
android:id="#+id/editTextItemUnit"
android:layout_gravity="center_horizontal"
android:hint="#string/unit"
android:textSize="15sp"
android:padding="10dp" />
</android.support.design.widget.TextInputLayout>
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:focusable="true"
android:focusableInTouchMode="true"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.design.widget.TextInputLayout
android:id="#+id/input_layout_item_quantity"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:paddingTop="05dp"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp">
<android.support.design.widget.TextInputEditText
android:layout_width="240dp"
android:layout_height="45dp"
android:id="#+id/editTextItemQuantity"
android:layout_gravity="center_horizontal"
android:hint="#string/quantity"
android:textSize="14sp"
android:padding="10dp" />
</android.support.design.widget.TextInputLayout>
</LinearLayout>
<Button
android:layout_width="100dp"
android:layout_height="30dp"
android:text="Select"
style="?android:attr/borderlessButtonStyle"
android:id="#+id/buttonSelect"
android:layout_gravity="center_horizontal"
android:layout_marginTop="100dp"
android:layout_marginBottom="50dp"
android:background="#drawable/btn_hlf_blue"
android:textColor="#android:color/white"
android:textSize="12sp" />
</LinearLayout>
</RelativeLayout>
Activity:
public class SearchActivity extends AppCompatActivity implements AdapterView.OnItemSelectedListener {
private TextInputEditText edt_Item_Name,edt_Item_Unit,edt_Item_quantity;
private TextInputLayout textInput_Item_name,textInput_Item_Unit,textInput_Item_quantity;
private Spinner spinner;
private Button btnSelect;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_search);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
toolbar.setNavigationIcon(R.drawable.ic_back);
setSupportActionBar(toolbar);
toolbar.setNavigationOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
finish();
}
});
setUpUI();
}
public void setUpUI(){
edt_Item_Name = (TextInputEditText) findViewById(R.id.editTextItemName);
edt_Item_quantity = (TextInputEditText)findViewById(R.id.editTextItemQuantity);
edt_Item_Unit = (TextInputEditText)findViewById(R.id.editTextItemUnit);
textInput_Item_name = (TextInputLayout)findViewById(R.id.input_layout_item_name);
textInput_Item_quantity = (TextInputLayout)findViewById(R.id.input_layout_item_quantity);
textInput_Item_Unit = (TextInputLayout)findViewById(R.id.input_layout_item_unit);
spinner = (Spinner)findViewById(R.id.items_spinner);
btnSelect = (Button)findViewById(R.id.buttonSelect);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this,
R.array.items_array, R.layout.order_item_layout);
// Specify the layout to use when the list of choices appears
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// Apply the adapter to the spinner
spinner.setAdapter(adapter);
spinner.setOnItemSelectedListener(this);
textInput_Item_name.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
spinner.setVisibility(View.VISIBLE);
edt_Item_Unit.setVisibility(View.GONE);
edt_Item_quantity.setVisibility(View.GONE);
btnSelect.setVisibility(View.GONE);
textInput_Item_name.setBackgroundResource(R.drawable.purple_bg);
}
});
}
public void onItemSelected(AdapterView<?> parent, View view,
int pos, long id) {
// An item was selected. You can retrieve the selected item using
// parent.getItemAtPosition(pos)
}
public void onNothingSelected(AdapterView<?> parent) {
// Another interface callback
}
}
How can I achieve this design? Can anyone help with this please? Thank you..

Use ListView or RecyclerView and put a spinner in a layout that will be use in your viewholder.class associated with getView method in adapter class, after-that set your data using ArrayList/Hashmap with the help of constructor of Adapter class.

Follow this
package com.example.spinner;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.Toast;
import android.widget.AdapterView.OnItemSelectedListener;
class AndroidSpinnerExampleActivity extends Activity implements OnItemSelectedListener{
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// Spinner element
Spinner spinner = (Spinner) findViewById(R.id.spinner);
// Spinner click listener
spinner.setOnItemSelectedListener(this);
// Spinner Drop down elements
List<String> categories = new ArrayList<String>();
categories.add("Automobile");
categories.add("Business Services");
categories.add("Computers");
categories.add("Education");
categories.add("Personal");
categories.add("Travel");
// Creating adapter for spinner
ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, categories);
// Drop down layout style - list view with radio button
dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// attaching data adapter to spinner
spinner.setAdapter(dataAdapter);
}
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
// On selecting a spinner item
String item = parent.getItemAtPosition(position).toString();
// Showing selected spinner item
Toast.makeText(parent.getContext(), "Selected: " + item, Toast.LENGTH_LONG).show();
}
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
}
Use this layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:padding="10dip"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dip"
android:text="Category:"
android:layout_marginBottom="5dp"/>
<Spinner
android:id="#+id/spinner"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:prompt="#string/spinner_title"/>
</LinearLayout>

Draw your layout somthing like this:
<RelativeLayout
android:id="#+id/spinner_layout"
android:layout_width="match_parent"
android:layout_height="#dimen/dp_30"
android:layout_margin="#dimen/dp_20"
android:background="#color/fragment_bg"
android:orientation="horizontal">
<TextView
android:id="#+id/txt_city"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginStart="#dimen/dp_20"
android:hint="#string/select_city"
android:singleLine="tru
android:textSize="#dimen/sp_15"/>
<Spinner
android:id="#+id/spinner_city"
android:layout_width="match_parent"
android:layout_height="#dimen/dp_30"
android:layout_centerVertical="true"
android:entries="#array/StateName"
android:gravity="center"
android:padding="#dimen/sp_15"
app:binding="#{location.locations}"/>
</RelativeLayout>
and use your textinput layout instead of textview
Don't use Edittext use Textview to set clicked item text. "if you use edittext, then you have to tap two times to get call in onClickListener method because on first time of click it set to get focus and open soft keyboard"

Title in the BottomSheet

I have a BottomSheet with a RecyclerView, and I want to add a title there as in the picture below ("Add new record"), I was trying to add TextView before the RecyclerView in the bottom_sheet LinearLayout, but this text doesn't appear on the screen, also I was trying to add an item in the RecyclerView (but I have a feeling that it's not a right approach), so my question is how to add the title to the BottomSheet?
This is the method where I'm adding items to the RecyclerView, which is in the BottomSheet:
private void showBottomSheetDialog() {
if (behavior.getState() == BottomSheetBehavior.STATE_EXPANDED) {
behavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
}
mBottomSheetDialog = new BottomSheetDialog(this);
View view = getLayoutInflater().inflate(R.layout.sheet, null);
RecyclerView recyclerView = (RecyclerView) view.findViewById(R.id.recyclerView);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
recyclerView.setAdapter(new ItemAdapter(createItems(), new ItemAdapter.ItemListener() {
#Override
public void onItemClick(Item item) {
if (mBottomSheetDialog != null) {
mBottomSheetDialog.dismiss();
}
}
}));
mBottomSheetDialog.setContentView(view);
mBottomSheetDialog.show();
mBottomSheetDialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
#Override
public void onDismiss(DialogInterface dialog) {
mBottomSheetDialog = null;
}
});
}
#Override
protected void onDestroy() {
super.onDestroy();
mAdapterItem.setListener(null);
}
public List<Item> createItems() {
ArrayList<Item> items = new ArrayList<>();
items.add(new Item(R.drawable.camera, "from new shoots"));
items.add(new Item(R.drawable.folder_multiple_image, "from ready images"));
return items;
}
xml of the screen:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v7.widget.Toolbar
android:id="#+id/my_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#118b0a"
android:elevation="4dp"
android:theme="#style/ThemeOverlay.AppCompat.ActionBar"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
<android.support.v7.widget.RecyclerView
android:id="#+id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/my_toolbar" />
<android.support.design.widget.FloatingActionButton
android:id="#+id/float_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_margin="16dp"
android:src="#drawable/add_white" />
<android.support.design.widget.CoordinatorLayout
android:layout_width="0dp"
android:layout_height="0dp">
<LinearLayout
android:id="#+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#fff"
android:gravity="center"
android:orientation="vertical"
app:layout_behavior="#string/bottom_sheet_behavior">
<!-- Here I was trying to add text view-->
<!--<TextView-->
<!--android:layout_width="match_parent"-->
<!--android:layout_height="wrap_content"-->
<!--android:text="Add new record 2"-->
<!--/>-->
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="16dp"
android:layout_marginTop="16dp"
android:background="#fff" />
</LinearLayout>
</android.support.design.widget.CoordinatorLayout>
</RelativeLayout>
xml of item in the RecyclerView which is in the BottomSheet:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?android:attr/selectableItemBackground"
android:clickable="true"
android:gravity="center_vertical"
android:orientation="horizontal">
<ImageView
android:id="#+id/imageView"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_margin="16dp"
android:src="#mipmap/ic_launcher" />
<TextView
android:id="#+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="16dp"
android:layout_marginStart="16dp"
android:gravity="center_vertical"
android:textColor="#787878"
android:textSize="22sp" />
</LinearLayout>